kemmerer



H". KEMMERER, 8a., AND H. A. KEMMERER, In.

DUSTLESS ASH SIFTER.

APPLICATION FILED MAR. I. 1919.

Patented Oct. 7, 1919.

R0 Y ma M N R V w m m M Hear I fir 4r)"; 1

WITNESSES F SAE HENRY KEMMERER, $3., AND

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DUs'rLnss ASH-SIFTER.

Specification of Letters Patent.

Patented Oct. '7, 1919.

. Application filed March 1, 1919. Serial No. 279,937. v

To all whom it may concern:

Be it known that we, HENRY KEMMERER, Sn, and HARRY A. KEMMERER, Jr.,citizens of the United States, residing at- Wilkes- Barre, in the countyof Luzerne and State of Pennsylvania, have invented certain new anduseful Improvements in Dustless Ash- Sifters, of which the following isa specification. Y

The invention provides a sifter for separating material such as ashesfrom cinders, sand from gravel and any objectionable matter frommaterial of any nature capable of being sifted.

The invention provides a sifter which embodies compartments forretaining the separated material. In the case of ashes the cinders areretained in one compartment and the ashes collected in anothercompartment, the device being completelyinclosed, thereby preventing theescape of dust tothe inconvenience andannoyance of the user.

The drawing illustrates a preferred em bodiment of the invention.However, it is to be understood that in adapting the same to meetdifferent conditions, various changes in the form, proportion, and minordetails of construction may be resorted to without departing from thenature of the invention as claimed hereinafter.

Referring to the drawing hereto attached,

Figure 1 is a perspective view of a sifter embodying the invention,showing the cover partly elevated and the lower compartment partly drawnforward.

Fig. 2 is a vertical cross section.

Fig. 3 is a detail view of a screen to be substituted for thatillustrated in Figs. 1 and 2.

Corresponding and like parts are referred to in the followingdescription and indicated in both views of the drawing by like referencecharacters.

The sifter comprises an upper compartment 1 and a lower compartment 2,said compartments being readily separable so that the lower compartmentmay be stored within the upper compartment so as to economize room intransportation and in storing. The sifter may be made of any materialsuch as sheet metal, wood or a combination of metal and wood. The lowercompartment 2 is of such relative proportions as to fit within the uppercompartment. A cover 3 closes the upper compartment and is preferablyhinged thereto and is adapted to be secured when closed by any suitablefastening means. A guide way 4 is provided at the lower edge of the rearand sides of the compartment 1 and engages an outer flange 5 at the rearand sides of the compartment 2, thereby retaining the latter in positionand at the same time insuring the formation of a close joint. The flange5 is formed by bending the upper edges of the rear and sides of thecompartment 2 outwardly so as to engage over the inwardly bent loweredges of the rear and sides of the compartment 1. The front of thecompartment 2 projects upwardly, as indicated at 6 to overlap the loweredge of the is bent to provide an inclined portion '10 and a horizontalportion 11, the horizontal portion 11 paralleling the inwardly bentportion of the rear and side walls of the compartment 1 so as to formtherewith the guide way which receives the supporting flange 5 of thecompartment 2. The inclined portion 10 of the strip 9 forms a chute fordirecting the ashes or other material into the compartment 2 andprevents the formation of corners for the lodging of ashes or othermaterial. This strip 9 in conjunction with the inwardly bent edges ofthe rear and side walls of the compartment 1 serve to strengthen andreinforce the walls of the compartment besides providing a supportingledge for receiving the screen 12 which is mounted thereon. The outerflange 5 serves to strengthen and reinforce the upper edges of the rearand side walls of the compartment 2 in addition to forming support ingmeans for such compartment when applied to the lower side of thecompartment 1.

For economizing in space the compartment 2 is adapted to be placedwithin the compartment 1. When the sifter is required for service thecompartment 2 is placed beneath the compartment 1 and is retained inposition by the flange 5 engaging the guide way 4, the turn buckles 7being moved, to

, extend across'the front of the compartment '2 and retain the latter inplace. 7 Theiashes" or other material to be sifted is placed in the of,whereby the ashes pass through the meshes of the screen 12 and collectin the compartment 2, the cindersremaining in the compartment 1. Thedevice being com pletely inclosed prevents dust fromwflying about to theannoyance of the user.

It is contemplated to provide the device with one or more screens whichare interchangeable so that one screen may be substituted' for anotheraccording to the degree of fineness of the material to be separated.When a screen of large or coarse mesh is placed in position the siftingswill neces sarily be coarse. If a screen of fine mesh is placed inposition the screenings will ob viously' befine.v To facilitate thehandling of the screens each will be provided with a ring 12 which bypreference is connected to the frame thereof. The screen l2 'shown I Theforegoing description and the draw- 1 ing have reference to what may beconsidered the preferred, or approved i form of our invention. It is tobe understood that we I may make such changes in construction andarrangement and combination of parts, ma- .lterl'als, dlmensions, etceter'a, as may prove expedient and fall within the scope of theappended claim.

Having thus fully described our invention, what we claimas new anddesire to secure by Letters Patent is:

A sifter, comprising an upper compartment having an inwardly extendingflange at the lower edge of its rear and sidewalls, a strip upon theinner side of the walls of said compartment and comprising an inclined.portion and a horizontal portion, the latter'overlying and being spacedfrom the inner 'flange, a lower compartment having an outer flange atthe upper edge of its rear and sides to engage over the inner flange atthe sides of the upper compartment and extendedto overlap the lower edgeof the front of the upper compartment, fastening means for securing thetwo compartments when in operative position, a cover for theupper'compartment, and a screen supported upon the said strip, the lowercompartment being adapted tobeplaced within the upper compartment whennot in use.

In testimony whereof we affix-our signatures in presence oftwo witnessesV HENR Y KEMMERER, SR.

HARRYA. KEMMERER, JR.

Witnesses: 1

H. C.'JAOoBs,

PETER CoNLAN.

copies of -this patent'ma y be obtained for fiveccents each, byaddressing the""co,mmissionerof'latents,

- Washingtoml). 0. j c '3' I beneath the" said strip, and having itsfront

